My dog is eating my electronics

Our dog is a good dog. He is potty trained. He rarely has any accidents. He knows how to fetch, he knows how to obay commands to sit, lay down, come, and shake.

We are also very lucky in that he hasnt been chewing on couches, furniture, shes or socks. He does have one weakness. He loves my electronics. He loves to eat blackberries, cell phones, cameras, network cables, power chargers, and sometimes even live power supplies. Here is a picture of his latest desert of my plantronics blue tooth ear piece.



We are not sure why he loves to eat electronic gadgets. We aren't sure how to train him otherwise. We provide him with bones to chew and congs so he generally leaves our stuff alone, yet he generally prefers a new shiny gadget to a hide. How do we break this habit?